It's an old Mission Cyrus II integrated amplifier (I bought it brand new in 1988). It has been sitiing in my basement for a long long time (over 8 years). Recently, I took it out and set it up for my wife in the study room for easy listening with Technics DVD player and KEF 103.2 bookshelf speaker.

It may have existed before. I discovered last evening when I replaced the speaker wire and banana plug with Axiom bulk speaker wire and banana plug. When I changed it back to the old wire and plug, I can still hear the sound. Therefore, I guess this exists before but I didn't realize.

It doesn't affect my wife from day to day listening since she listens mostly to soft rock songs. I think it may be an issue if playing some classical peices with very soft music.

I just want to know whether this is normal or not.

Thanks.

ps. I still have yet to own Axiom speakers, hopefully it's not far away (my dream is M60Ti).